Hey, I thought this was a really cool concept!
A few player experience issues I had:
A big thing about keeping the player in mind is making the game obvious without tutorials. We can do things like when the robot rolls near a tool showing a highlight on that tool and the space bar, and when you're holding a tool and getting near the bathroom showing the enter key being tapped repeatedly. I.e. A tutorial is great, and I'm really glad it wasn't required! Design should reveal how the game works as much as possible without relying on the tutorial.